Home / 13,386.66-18,482.26-8,608.75

Finding the Fourth Proportional to 13,386.66, 18,482.26 and 8,608.75

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Solution

The fourth proportional to 13,386.66, 18,482.26 and 8,608.75 is: 11,885.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.66 : 18,482.26 = 8,608.75 : x
  2. Step 2: Convert to fraction form
    13,386.66/18,482.26 = 8,608.75/x
  3. Step 3: Cross multiply
    13,386.66x = 18,482.26 × 8,608.75
  4. Step 4: Simplify right side
    13,386.66x = 159,109,088.05
  5. Step 5: Solve for x
    x = 159,109,088.05/13,386.66
  6. Step 6: Final answer
    x = 11,885.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.